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Dropbox

The Dropbox service is designed mainly for synchronizing documents and files among multiple computers and mobile devices, with formats including Windows, Mac, Linux, iPad, iPhone, Android, and BlackBerry. Dropbox can also serve as a simple backup solution. You can store up to 2GB for free, 50GB for $9.99 per month, or 100GB for $19.99 per month. Files uploaded to Dropbox via the desktop application have no file size limit, whereas files uploaded through the website have a 300MB limit.

The Dropbox service provides applications you can download to integrate access to the online storage rights inside Windows or other operating systems. For example, in Windows Dropbox creates a new folder in your user directory:

C:\Users\<Your_Name>\Dropbox

Here you'll find all your files stored by the service. To upload files, you just copy or drag them into the folder, just as you would with any other folder. You can use this quick access on your devices, and then use the Dropbox website when you're working on someone else's computer or device.

You can also share folders with the Dropbox service. When other people join the shared folder, it appears inside their Dropbox and syncs to their computers automatically. This feature is great for sharing files or collaborating on files among multiple people.